heads interchangeable

[camaro2you]

hey guys iv been having this fight with my buddy he says that ls1 heads will bolt up to a vortec motor and i say that this will not work. any comments will help me out lol.

[Tru2Chevy]

Ha. Go slap your friend in the back of the head. LS1 heads won't bolt up to a GenI sbc.

- Justin

[camaro2you]

what about gen III vortec? specifically a 99 gmc sierra 1500.

[V]

yes, the 99+ GM pickups had the 5.3 motor, ls1 heads will bolt on to that.

[Tru2Chevy]

All gen III motors are on the LSx platform, so head interchange is fine. Those are just called Vortec. They share nothing but a name with the GenI vortec heads.

Athough LS1 heads incorporate the same basic principles as the GenI vortec heads, they are not interchangeable.

- Justin

[Ian]

gen 3 motors can interchange parts with one another, but not gen 1 or 2 motors. the gen 1 and 2 can swap 99% of their parts between one another, but the gen 3 is a "clean sheet of paper" design. it shares nothing with the gen 1 and 2 motors.

[camaro2you]

thanks guys u helped me out alot with this, now i can go explain this to my buddy lol.